23 MPG combined won’t win any fuel efficiency contests, but for the 2015 BMW X4 xDrive28i, it’s a compromise many buyers accept. This isn’t a vehicle purchased solely for its gas mileage. It’s for those who want the BMW driving experience, a stylish crossover coupe design, and the all-weather security of xDrive all-wheel drive, while accepting a fuel bill that reflects those priorities.

City and highway performance

The EPA estimates 20 MPG in the city and 28 MPG on the highway for the X4 xDrive28i. The city figure reflects the stop-and-go nature of urban driving, where the 2.0L turbocharged four-cylinder has to work harder to overcome the X4’s weight. The highway figure is more respectable. It demonstrates the engine’s efficiency at a constant speed and the benefits of the eight-speed automatic transmission (S8) keeping the engine in its optimal rev range. These figures are relevant for X4 buyers, as many use it for daily commutes in suburban areas, a mix of both city and highway driving.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2015 BMW X4 xDrive28i at $2,500. This figure is based on driving 15,000 miles per year and using national average fuel prices. It provides a benchmark for potential owners, allowing them to factor in the long-term running costs of the vehicle. Keep in mind that this is an estimate and your actual fuel costs may vary depending on your driving habits, local fuel prices, and the type of fuel you use.

Real-world expectations

While the EPA provides a standardized testing procedure, real-world fuel economy often differs. Drivers who frequently engage in spirited driving, use the X4’s sport modes regularly, or encounter heavy traffic congestion will likely see figures below the EPA estimates. Conversely, those who drive conservatively and stick to highway cruising may achieve closer to, or even slightly exceed, the 28 MPG highway rating. Individual driving style greatly impacts fuel consumption.

How it compares

The X4’s fuel economy is competitive but doesn’t lead the pack. For example, the 2015 Acura RDX, with its 3.5L V6, manages around 22 MPG combined. The Audi Q5 2.0T, another popular competitor, achieves a similar 23 MPG combined rating and offers a slightly more conventional SUV shape. A Mercedes-Benz GLC300 from the time period comes in at around 24 MPG combined. The BMW’s slightly less impressive number wouldn’t typically sway a buyer who’s after the X4’s unique styling and BMW’s specific driving dynamics. See all Bmw fuel economy data to gauge how this stacks up against their broader lineup, and check the X4 MPG across all years for comparisons within the model line.

Tips to maximize efficiency

Take advantage of the X4’s Eco Pro mode. This setting adjusts the engine mapping, throttle response, and shift points to prioritize fuel efficiency. It can make a noticeable difference, especially during everyday commuting.

Check your tire pressures regularly. Underinflated tires increase rolling resistance, forcing the engine to work harder and burn more fuel. Keeping your tires properly inflated to the recommended pressure listed on the door jamb sticker is a small effort that yields measurable gains.

Anticipate traffic flow and drive smoothly. Avoid sudden acceleration and harsh braking, as these actions waste fuel. Maintaining a consistent speed and using engine braking whenever possible can significantly improve your MPG. Adapt to driving conditions and use cruise controls to maintain the appropriate speeds.

Limit unnecessary weight. Remove any items from the vehicle that are not essential, as extra weight increases fuel consumption. A lighter vehicle requires less energy to accelerate and maintain speed, so decluttering can make a small but positive impact.

Remember that premium fuel is recommended for optimal performance but not required. While the engine will run on regular gasoline, it is calibrated to perform efficiently on premium. Consult the owner’s manual for complete information.